VoIP (Voice over Internet Protocol) is a system for transmitting voice calls over the internet, rather than a phone line.

Voice over Internet Protocol (VoIP), or Internet calling, makes it possible to make local or long-distance telephone voice calls over the Internet without going through a traditional landline ...

Wi-Fi calling allows you to make calls using Wi-Fi instead of a cellular connection, and is great for folks living in areas ...

Wi-Fi can easily serve as a backup for your cellular network for calling and texting, especially if you find yourself without signal. Mike Sorrentino is a Senior Editor for Mobile, covering phones, ...

Thousands of AT&T customers are unsuccessfully searching for a signal across the country amid a nationwide telecommunication outage early Thursday morning. AT&T acknowledged the issue in a statement ...

Phone and Android users can reduce Wi-Fi calling battery drainage through settings adjustments, background app limits and ...

If you want to fix the SOS displaying on your phone, here's what to do. But the issue may lie with your carrier.